Total Galactic extinction Map (gaiadr3.total_galactic_extinction_map)

The table has 4177920 rows, 10 columns.


This table provides the Total Galactic Extinction (TGE) map for extinction parameters A0 describing the effective total Galactic extinction and related uncertainties at four separate HEALPix levels, namely levels 6 to 9. For further details see Section cu8par_apsis_tge of the online documentation.


If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (, processed by the Gaia Data Processing and Analysis Consortium (DPAC, Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

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Name Type UCD Unit Description
solution_id long meta.version

Solution Identifier

healpix_id long pos.healpix

HEALPix identification

healpix_level short pos.healpix

HEALPix level used

a0 float phys.absorption.coeff mag

Mean A0 extinction parameter

a0_uncertainty float stat.error

Uncertainty for the mean A0

a0_min float phys.absorption.coeff

Minimum A0 value used for the HEALPix of interest

a0_max float phys.absorption.coeff

Maximum A0 value used for the HEALPix of interest

num_tracers_used integer meta.number

Number of tracers used

optimum_hpx_flag boolean meta.code.class

Flag to indicate whether a given HEALPix level is the optimum (True) or not (False)

status short meta.code.status

Exit status for TGE